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https://gitlab.com/Theopse/fbi-i18n-zh.git
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306 lines
10 KiB
C
306 lines
10 KiB
C
#include <malloc.h>
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#include <3ds.h>
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#include "error.h"
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#include "list.h"
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#include "ui.h"
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#include "../screen.h"
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#include "../linkedlist.h"
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#include "../../fbi/resources.h"
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typedef struct {
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void* data;
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linked_list items;
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u32 selectedIndex;
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list_item* selectedItem;
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u32 selectionScroll;
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u64 nextSelectionScrollResetTime;
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float scrollPos;
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u32 lastScrollTouchY;
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u64 nextActionTime;
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void (*update)(ui_view* view, void* data, linked_list* items, list_item* selected, bool selectedTouched);
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void (*drawTop)(ui_view* view, void* data, float x1, float y1, float x2, float y2, list_item* selected);
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} list_data;
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static void list_validate(list_data* listData, float by1, float by2) {
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u32 size = linked_list_size(&listData->items);
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if(size == 0 || listData->selectedIndex < 0) {
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listData->selectedIndex = 0;
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listData->selectedItem = NULL;
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listData->scrollPos = 0;
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}
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if(size > 0) {
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if(listData->selectedIndex > size - 1) {
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listData->selectedIndex = size - 1;
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listData->selectedItem = NULL;
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listData->scrollPos = 0;
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}
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float viewSize = by2 - by1;
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float fontHeight = screen_get_font_height(0.5f);
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bool found = false;
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if(listData->selectedItem != NULL) {
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u32 oldIndex = listData->selectedIndex;
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int index = linked_list_index_of(&listData->items, listData->selectedItem);
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if(index != -1) {
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found = true;
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listData->selectedIndex = (u32) index;
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if(listData->selectedIndex != oldIndex) {
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listData->scrollPos += (listData->selectedIndex * fontHeight) - (oldIndex * fontHeight);
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}
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}
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}
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if(!found) {
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listData->selectedItem = linked_list_get(&listData->items, listData->selectedIndex);
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listData->selectionScroll = 0;
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listData->nextSelectionScrollResetTime = 0;
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}
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float itemY = listData->selectedIndex * fontHeight;
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float minItemScrollPos = itemY - (viewSize - fontHeight);
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if(listData->scrollPos < minItemScrollPos) {
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listData->scrollPos = minItemScrollPos;
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}
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if(listData->scrollPos > itemY) {
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listData->scrollPos = itemY;
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}
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float maxScrollPos = (size * fontHeight) - viewSize;
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if(listData->scrollPos > maxScrollPos) {
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listData->scrollPos = maxScrollPos;
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}
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if(listData->scrollPos < 0) {
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listData->scrollPos = 0;
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}
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}
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}
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static void list_update(ui_view* view, void* data, float bx1, float by1, float bx2, float by2) {
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list_data* listData = (list_data*) data;
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u32 size = linked_list_size(&listData->items);
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list_validate(listData, by1, by2);
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bool selectedTouched = false;
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if(size > 0) {
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bool scrolls = false;
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if(listData->selectedItem != NULL) {
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float itemWidth;
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screen_get_string_size(&itemWidth, NULL, listData->selectedItem->name, 0.5f, 0.5f);
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if(itemWidth > bx2 - bx1) {
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scrolls = true;
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if(listData->selectionScroll == 0 || listData->selectionScroll >= itemWidth - (bx2 - bx1)) {
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if(listData->nextSelectionScrollResetTime == 0) {
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listData->nextSelectionScrollResetTime = osGetTime() + 2000;
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} else if(osGetTime() >= listData->nextSelectionScrollResetTime) {
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listData->selectionScroll = listData->selectionScroll == 0 ? 1 : 0;
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listData->nextSelectionScrollResetTime = 0;
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}
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} else {
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listData->selectionScroll++;
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}
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}
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}
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if(!scrolls) {
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listData->selectionScroll = 0;
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listData->nextSelectionScrollResetTime = 0;
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}
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u32 lastSelectedIndex = listData->selectedIndex;
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if((hidKeysDown() & KEY_DOWN) || ((hidKeysHeld() & KEY_DOWN) && osGetTime() >= listData->nextActionTime)) {
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if(listData->selectedIndex < size - 1) {
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listData->selectedIndex++;
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} else {
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listData->selectedIndex = 0;
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}
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listData->nextActionTime = osGetTime() + ((hidKeysDown() & KEY_DOWN) ? 500 : 100);
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}
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if((hidKeysDown() & KEY_UP) || ((hidKeysHeld() & KEY_UP) && osGetTime() >= listData->nextActionTime)) {
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if(listData->selectedIndex > 0) {
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listData->selectedIndex--;
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} else {
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listData->selectedIndex = size - 1;
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}
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listData->nextActionTime = osGetTime() + ((hidKeysDown() & KEY_UP) ? 500 : 100);
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}
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if((hidKeysDown() & KEY_RIGHT) || ((hidKeysHeld() & KEY_RIGHT) && osGetTime() >= listData->nextActionTime)) {
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if(listData->selectedIndex < size - 1) {
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u32 remaining = size - 1 - listData->selectedIndex;
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listData->selectedIndex += remaining < 13 ? remaining : 13;
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} else {
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listData->selectedIndex = 0;
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}
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listData->nextActionTime = osGetTime() + ((hidKeysDown() & KEY_RIGHT) ? 500 : 100);
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}
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if((hidKeysDown() & KEY_LEFT) || ((hidKeysHeld() & KEY_LEFT) && osGetTime() >= listData->nextActionTime)) {
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if(listData->selectedIndex > 0) {
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u32 remaining = listData->selectedIndex;
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listData->selectedIndex -= remaining < 13 ? remaining : 13;
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} else {
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listData->selectedIndex = size - 1;
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}
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listData->nextActionTime = osGetTime() + ((hidKeysDown() & KEY_LEFT) ? 500 : 100);
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}
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if((hidKeysDown() | hidKeysHeld()) & KEY_TOUCH) {
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touchPosition pos;
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hidTouchRead(&pos);
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if(hidKeysDown() & KEY_TOUCH) {
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u32 index = (u32) ((listData->scrollPos + (pos.py - by1)) / screen_get_font_height(0.5f));
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if(index >= 0) {
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if(listData->selectedIndex == index) {
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selectedTouched = true;
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} else {
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listData->selectedIndex = (u32) index;
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}
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}
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} else if(hidKeysHeld() & KEY_TOUCH) {
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listData->scrollPos += -((int) pos.py - (int) listData->lastScrollTouchY);
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}
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listData->lastScrollTouchY = pos.py;
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}
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if(listData->selectedIndex != lastSelectedIndex) {
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listData->selectedItem = linked_list_get(&listData->items, listData->selectedIndex);
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listData->selectionScroll = 0;
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listData->nextSelectionScrollResetTime = 0;
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}
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list_validate(listData, by1, by2);
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}
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if(listData->update != NULL) {
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listData->update(view, listData->data, &listData->items, listData->selectedItem, selectedTouched);
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}
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}
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static void list_draw_top(ui_view* view, void* data, float x1, float y1, float x2, float y2) {
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list_data* listData = (list_data*) data;
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if(listData->drawTop != NULL) {
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list_validate(listData, y1, y2);
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listData->drawTop(view, listData->data, x1, y1, x2, y2, listData->selectedItem);
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}
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}
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static void list_draw_bottom(ui_view* view, void* data, float x1, float y1, float x2, float y2) {
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list_data* listData = (list_data*) data;
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list_validate(listData, y1, y2);
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float fontHeight = screen_get_font_height(0.5f);
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float y = y1 - listData->scrollPos;
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linked_list_iter iter;
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linked_list_iterate(&listData->items, &iter);
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while(linked_list_iter_has_next(&iter)) {
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if(y > y2) {
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break;
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}
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list_item* item = linked_list_iter_next(&iter);
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if(y > y1 - fontHeight) {
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float x = x1 + 2;
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if(item == listData->selectedItem) {
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x -= listData->selectionScroll;
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}
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screen_draw_string(item->name, x, y, 0.5f, 0.5f, item->color, true);
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if(item == listData->selectedItem) {
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u32 selectionOverlayWidth = 0;
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screen_get_texture_size(&selectionOverlayWidth, NULL, TEXTURE_SELECTION_OVERLAY);
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screen_draw_texture(TEXTURE_SELECTION_OVERLAY, (x1 + x2 - selectionOverlayWidth) / 2, y, selectionOverlayWidth, fontHeight);
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}
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}
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y += fontHeight;
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}
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u32 size = linked_list_size(&listData->items);
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if(size > 0) {
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float totalHeight = size * fontHeight;
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float viewHeight = y2 - y1;
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if(totalHeight > viewHeight) {
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u32 scrollBarWidth = 0;
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screen_get_texture_size(&scrollBarWidth, NULL, TEXTURE_SCROLL_BAR);
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float scrollBarHeight = (viewHeight / totalHeight) * viewHeight;
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float scrollBarX = x2 - scrollBarWidth;
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float scrollBarY = y1 + (listData->scrollPos / totalHeight) * viewHeight;
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screen_draw_texture(TEXTURE_SCROLL_BAR, scrollBarX, scrollBarY, scrollBarWidth, scrollBarHeight);
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}
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}
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}
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ui_view* list_display(const char* name, const char* info, void* data, void (*update)(ui_view* view, void* data, linked_list* items, list_item* selected, bool selectedTouched),
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void (*drawTop)(ui_view* view, void* data, float x1, float y1, float x2, float y2, list_item* selected)) {
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list_data* listData = (list_data*) calloc(1, sizeof(list_data));
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if(listData == NULL) {
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error_display(NULL, NULL, "Failed to allocate list data.");
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return NULL;
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}
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listData->data = data;
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linked_list_init(&listData->items);
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listData->selectedIndex = 0;
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listData->selectedItem = NULL;
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listData->selectionScroll = 0;
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listData->nextSelectionScrollResetTime = 0;
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listData->scrollPos = 0;
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listData->lastScrollTouchY = 0;
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listData->update = update;
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listData->drawTop = drawTop;
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ui_view* view = ui_create();
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view->name = name;
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view->info = info;
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view->data = listData;
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view->update = list_update;
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view->drawTop = list_draw_top;
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view->drawBottom = list_draw_bottom;
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ui_push(view);
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return view;
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}
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void list_destroy(ui_view* view) {
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if(view != NULL) {
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linked_list_destroy(&((list_data*) view->data)->items);
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free(view->data);
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ui_destroy(view);
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}
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} |